再生砂在铸钢件上的应用及质量控制  

Application and Quality Control of Reclaimed Sand to Steel Castings

作　　者：赵丽 ZHAO Li(Hebei Huabei Petroleum Rongsheng Machinery Manufacturing Co.,Ltd.,Renqiu 062552,Hebei,China)

机构地区：[1]河北华北石油荣盛机械制造有限公司,河北任丘062552

出　　处：《铸造》2023年第9期1196-1198,共3页Foundry

摘　　要：旧砂再生循环使用是减少铸造成本的有效途径,合理使用再生砂,减少或避免铸造缺陷产生是再生砂使用的重要环节。文章介绍了热干法联合再生系统,酯硬化水玻璃再生砂的质量检验标准,生产常用的混砂配方,分析了酯硬化水玻璃再生砂的工艺性能。通过酯硬化水玻璃自硬砂工艺使用经验,针对生产过程中容易出现的问题进行分析,并给出了应对措施和解决方案。Recycling of used sand is an effective way to reduce the cost of foundry.It is important to use reclaimed sand reasonably to reduce or avoid casting defects.This paper introduces the hot-dry combined reclamation system,the quality inspection standard of ester-hardened sodium silicate reclaimed sand,the commonly used sand-mixing formula in production,and analyzes the technological properties of ester-hardened sodium silicate reclaimed sand.Based on the application experience of ester-hardened sodium silicate self-hardening sand,the problems in the production process are analyzed,and the corresponding countermeasures and solutions are given.

关 键 词：酯硬化水玻璃砂 再生砂 质量控制 

分 类 号：TG221[金属学及工艺—铸造]